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6 juin 2018

On the origins of agriculture, researchers uncover new clues [Phys]

The invention of agriculture changed humans and the environment forever, and over several thousand years, the practice originated independently in a least a dozen different places. But why did agriculture begin in those places, at those particular times in human history ?

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6 juin 2018

Guppies change their eye color to deter rivals [Phys]

A study led by the University of Exeter, in collaboration with the University of the West Indies, found that when facing a rival, guppies rapidly turn their irises from silver to black before attacking their adversary.

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4 juin 2018

New study corroborates role of wildlife in regulating the world’s plants [Phys]

Everyone knows that plants are eaten by animals, but how important is this basic process in structuring plant communities ? In a study published this week in the Proceedings of the National Academy of Sciences, ASE Research Fellow Dr. Matthew Scott Luskin and co-authors, use data from across the world to investigate the impacts of plant-eating animals, known as herbivores, on land ecosystems.

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4 juin 2018

Scientists link ocean dispersal of baby fish with ecology of adults [Phys]

For the first time, scientists have linked the ecology of adult fish populations inhabiting coral reefs with the dispersal of baby fish between reefs, reporting the dynamics of a living network called a "marine metapopulation."

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4 juin 2018

Évolution : l’histoire des Islandais lue dans leurs gènes [Futura-sciences]

Des chercheurs ont comparé les génomes d’individus qui vivaient en Islande il y a environ mille ans et d’européens actuels. Les Islandais modernes ont une proportion bien plus importante d’allèles d’origine scandinave que n’en avaient les premiers habitants de l’île.

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